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UNITED STATES" OFFICE.

GERARD ISANUKER, 0F NEW' YORK, N. Y.

BRICK-lVIACHINE.

Specification 0f Letters Patent No. 22,694. dated January 25, 1859.

To all whom it may concern:

lle it known that l., (iunmao lnxNoxnn, of the city, county, and Stato of New York, have invented certain new and useful Improvenients in Macliinery for hitaking Dry- Pressed Brick; and l do hereby declare the following to be a full description of the same.

The nature of my invention consists in the mode of constructing a dry pressing brick forming machine, by the arrangement and use of a horizontal rotary table, having in it, transversely of its axis, a molding box. In this molding box is arranged two opposing compressors or plungers. These are operated by means of two eccentric-s on the veri tical axis of the horizontal table, so that as the machine rotates, the brick is firmly pressed on opposite sides, while the upper side is sustained by passing under a seinieircular stationary cap plate, secured upon the. vertical axis of the machine (and to the upper side of which the hopper is attached) g and the lower side by a plunger fitting the lower opening of the mold. This plunger is arranged to work in a suitable box or guides attached to the lower side of the rotating mold box, and at each rotation of it, is elevated by an inclined plane on the base of the machine, so as to lift the brick from the mold when it is transferred to the table by coming in contact with the straight edge of the cap plate as the molding box rotates, thus forming, compressing and dischargingthe perfectly formed brick by the single rotation of the machine. But to describe my invention more particularly I will refer to the accompanying drawings forming a part of this specification the same letters of reference whenever they occur referring to like parts.

Figure l, is a plan view of the machine. Fig. 2 is a vertical cut section of the same lthrough the line a, ce, Fig. 1. Fig. 3 is a side elevation of the machine. Fig. 4, is a vertical eut section of the end of the machine through the line ail, zal, Fig. l. Fig. 5, is a detached plan view of the molding box, and plungers or compressors, with operating parts attached thereto. Figs. 6 and 7, side and plan view of the vertical axis of the machine showing the eccentrics attached there to, for operating the compressors.

Letter A, is the base or tread of the operating parts of the machine. Elevated from the center of this base is a stationary axis li. Upon this axis is adjusted a horizontal rotatory table This table is rotated upon the axis l, by means of a cog wheel l), sc cured to its base, gearing into a bevel cog wheel ll, upon the end ot any suitable drivingl power shaft F, that may be required. Transversely of the axis of the horizontal table board is arranged a brick forming molding box (it. This box is formed of any desired size for the brick intended to be made. In` it is arranged two compressors or plungers .I l and H2. These are operated by means of two cams, or eccentries or equivalent device, l' and l2, secured upon the tertical axis I), and ha ving attached to. and upon them eccentric rods J1 and J2. The rod J. is attached to and operates directly upon the compressor' Ht. The, opposite rod Jil'. is attached to an adjustable plunger K, working in the back end ot the molding box` and by means of side connecting rods l.. secured by suitable pins 7,1, to the ends of the plunger lx'. and compressor ll, causes it to operate simultaneously with thc direct action ot the plunger or ton'ipressor lili. To the back end of the plunger H, is an adjusting` screw M. This screw is secured in the end ol the eccen tric rod J2, and extends back through an opening in the plunger K. so that by means of the nut on it. the plunger l, may be distended outward from the vertical axis, and thereby shorten the throw of the side connecting rods L, to graduate or increase the pressure of the sides of the brick.

Letter N, is a stationary cap plate, adjusted upon the axis B, and fitting closely down upon the upper edges of tlieiiioltliiig box, so as to forni a covering to the mold. as it rotates. and to sustain the upper edge` of the brick from bulging while under th) action of the side compressors. Through this cap plate is a feed port: a?, upon which is adjusted the hopper lf), into which the clay is placed for charging the mold as it rotates underneath it. For the purpose of discharging the brick from the mold when formed, a section of the cap plate is cut off. and to prevent it from being warped or springing up under the operation of the compressors, a cleat Q, is secured to the edge of the rotatingl mold box, which extending over the edge of the cap plate at all times just at the point of action of the compressors holds it firmly down upon the mold box to make a perfectly finished and polished face to the brick as it comes from the machine.

ln [he lower end ol the mold :1nd forming' the bottoni thereolt is ai plunger ll. 'lhis plunger is seenreil in n vertiezil ,quille box H, :itlnehed lo the lower side ol the molding` liox, so is to rise :nld lnll in the inohl in; lhs lower roller end r2 is enrried forward by the rotntoiv action ot' the moldings:` box over :i emn or inclined pinne T, Heenred upon the upper snrlziee ol' the buse or tread A. The object of this elevating` device ik: to diselmrge the brick fron] the inold when formed by elevating it during the intermittent Space o'l' the oep plate to n level with the nippel' snrfilee of the rotating table, upon which it iS pushed by coming in Contact with its edge, just previous t0 the mold passing under the hopper to be again charged with Clay.

Having now described 1n;7 invention and its mode ofeonstruetion l will proceed to set forth what 1 claim and desire to secure by Letters Patent` of the United States. That I claim, therefore, is

l. The eoinllinntion ol the niljnetzilile plunger K, with the Hille rods ll, :ind rolls yy" :intl y, ol" the rotating n|ol hex, for opernting); the compressors in the nmnner deneribed for the inirpes'ie specified.

2. I nlo elziiln the nneoi the elezit (Jj in combination with the relating' molding,` hex' (l, :ind Selni-eirenlzu' etnlionznv wip pluie N, .snlistnntinll),y :is rleeerilieil :ind ior the pnr lionel; hereinlieifore Set forth.

Il. l :ilse elnini the nee oft un elevator plnnA gerl{,ii] er:it.i1ig:is set ifortlny in eoniliinntion with the rectangular rotatory mold llo; (i, adjustable eoinl'nessors Ill and Il,y :1nd ein; pluie Nr` :is :i device 'for molding' und eonrpreseing clay into hrielqn, :incl Llieelizirgringr the sinne therefrom.

GEARD BNGKE l.

`Witnesses CHARLES L. BAinnr'r, R. Rowrlnr. 

